Hi baggs. I purchased a stainless plate from Lowes, but it was magnetic. Low grade stainless is magnetic and will still corrode. I ended up getting another plate from an electrical supply wholesaler. Non magnetic = high grade stainless. I spent quite a bit of time de-burring the plate. I didn't want it digging into the Airstream aluminum. I wrapped all the electrical ends individually with electrical tape and shoved everything in the hole in case anyone ever wanted to restore the connections.
Hi bweybright. I don't watch TV much. And if I do it's streeming something from my smart phone or renting a movie from redbox. So it wasn't important (for me) to have a cable connection. I actually live in my Airstream and reside in a park that has free cable and I have never connected
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Happy Travels
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